Foundation Rotary Drilling Double Wall Casing Supporting The Bore Hole

Application:

1. Casing is used to minimize loosening of the soil structure around the pile during the drilling process.The use of casing is compulsory ,if even with a supporting suspension,the ground to be drilled is unstable ,and collaps of the bore hole wall must be expected.

2. Casing tubes have the function of cutting the soil structure with a casing shoe,to support the bore hole temporarily,and by preceding the excavation,to forestall loosening of the ground structure.

Feature

1. The technical parameters and processes of the products are in line with the Bauer standard;

2. Deformation and accuracy is strictly controlled through heat treatment,each casing is interchangeable;

3. BJTUFF casing joints are manufactured from tempered steel.The casing joints with high machining accuracy guarantee a fast replacement and bolting of the casings as well as the best force transmission effect.

4.Besides Bauer,casing is also suitable for Soilmec , Casagrande and other brand;

BJTUFF casing tubes are available in single or double -walled options .the great wall thickness of the tube ensures high rigidity.

Double-walled casings can be used universally, as they are designed especially for transmitting high rotational and vertical forces as created by the rotary drives and oscillators. The use of double-walled casings ensures a flush drilling string.

Single-walled casings can be used for applications where weight reduction is important.

Model List:

Tips of casing and tubing for piling project

1. The pipe casing should avoid to the collision, especially of casing joints knock against when install the casing bolts, it must be clean, otherwise it will cause the difficult installation.

2. The drilling bucket needs to be chiseled in advance when pile casing drives the increased torque to difficult.

3. The drilling bucket needs to be checked position and verticality of hole, to avoid opening the door at the hole bottom when lift the drilling open and closed again against to casing shoes.

4. Pull up pipe casing immediately to prevent steel trunk floating after the end of grouting.

Product advantage:

1- We purchase top quality raw materials from leading raw-steel factory.

2- Our drilling tools can be customized depending on kinds of rigs and site conditions.

3- We require high quality of welding, therefore we employ at least 8 years experienced welders.

4- Understand what customers need and provide what customers want, We provide one-stop solution for the world’s foundation construction users.

FAQ:

Q1.What does your company produce?

The main products of our company include drilling tools,drilling teeth,casing series,kelly bar accessories and ect.

Q2.How do you control the quality of your products?

First,we use good steel GB-Q355B.Our welding stick is flux-cored wire that applied to ship engineering.

Second, We strictly control the process,so If the quality of the product itself has the problem of open welding, we will give compensation;

Third, Customers could contact our sales managers on line/by email/by phone if there are any question during installation or construction, solutions will be given within 12 hours.